76
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Batoux N, Benhaddou-Zerrouki R, Bressolier P, Granet R, Laumont G, Aubertin AM, Krausz P. Nucleoside homodimerisation by cross metathesis. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(00)02292-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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77
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Kaldapa C, Blais J, Carré V, Granet R, Sol V, Guilloton M, Spiro M, Krausz P. Synthesis of new glycosylated neutral and cationic porphyrins dimers. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(99)02085-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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78
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Gourson C, Benhaddou R, Granet R, Krausz P, Verneuil B, Branland P, Chauvelon G, Thibault JF, Saulnier L. Valorization of maize bran to obtain biodegradable plastic films. J Appl Polym Sci 1999. [DOI: 10.1002/(sici)1097-4628(19991220)74:13<3040::aid-app5>3.0.co;2-m] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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79
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Chauvelon G, Saulnier L, Buleon A, Thibault JF, Gourson C, Benhaddou R, Granet R, Krausz P. Acidic activation of cellulose and its esterification by long-chain fatty acid. J Appl Polym Sci 1999. [DOI: 10.1002/(sici)1097-4628(19991121)74:8<1933::aid-app7>3.0.co;2-k] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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80
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Chianéa T, Cardot PJ, Assidjo E, Monteil J, Clarot I, Krausz P. Field- and flow-dependent trapping of red blood cells on polycarbonate accumulation wall in sedimentation field-flow fractionation. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1999; 734:91-9. [PMID: 10574194 DOI: 10.1016/s0378-4347(99)00339-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sedimentation field-flow fractionation (SdFFF) instrumentation is now mature. Methodological procedure and particle separation development rules are well established even in the case of biological species. However, in some biological applications, retention properties of samples not predicted by any field-flow fractionation (FFF) elution models are observed. It is demonstrated that the trapping of cellular material in the separation system is not related to geometrical instrumentation features but to channel wall characteristics. The physicochemical particle-wall attractive interactions are different depending on the flow-rate and field intensity applied. Separation power in SdFFF for biological species is therefore limited by the intensity of these interactions. In terms of separation, a balance is to be found between external field and flow intensity to limit particle-wall interactions.
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81
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Sol V, Blais JC, Carré V, Granet R, Guilloton M, Spiro M, Krausz P. Synthesis, Spectroscopy, and Photocytotoxicity of Glycosylated Amino Acid Porphyrin Derivatives as Promising Molecules for Cancer Phototherapy. J Org Chem 1999. [DOI: 10.1021/jo982499+] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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82
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Carré V, Jayat C, Granet R, Krausz P, Guilloton M. Chronology of the apoptotic events induced in the K562 cell line by photodynamic treatment with hematoporphyrin and monoglucosylporphyrin. Photochem Photobiol 1999; 69:55-60. [PMID: 10063800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Photodynamic treatment of promyelocytic K562 cells in the presence of a monoglucosylporphyrin or hematoporphyrin leads to a sequence of events recognized as hallmarks of apoptosis: a drop in mitochondrial potential, concurrent with a drop in ATP level and a decrease in cell respiration, translocation of phosphatidylserine of the plasma membrane, DNA fragmentation, appearance of apoptotic bodies and eventually loss of plasma membrane integrity. The chronology of these events is in accordance with sequential events induced by other known proapoptotic agents; in contrast to these agents that induce apoptosis in a restricted part of the cell population, we observed that the entire cell population (apart from a small percentage of cells that endured rapid necrosis during phototreatment) underwent apoptosis after irradiation in the presence of porphyrins. It appears that photodynamic treatment allows the bypass of early apoptotic signals in K562 cells that are otherwise renowned for their resistance to drug-induced apoptosis (A. McGahon, R. Bissonnette, M. Schmitt, K. M. Cotter, D. R. Green and T. G. Cotter, Blood 83, 1179-1187, 1994). Singlet oxygen is believed to be the proximate reactive species generated by porphyrin illumination. Because this molecule reacts with almost every cellular constituent, the way that singlet oxygen or its reactive oxygen species byproducts trigger apoptosis remains to be elucidated.
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83
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Carré V, Jayat C, Granet R, Krausz P, Guilloton M. Chronology of the Apoptotic Events Induced in the K562 Cell Line by Photodynamic Treatment with Hematoporphyrin and Monoglucosylporphyrin. Photochem Photobiol 1999. [DOI: 10.1111/j.1751-1097.1999.tb05306.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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84
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Carré V, Gaud O, Sylvain I, Bourdon O, Spiro M, Blais J, Granet R, Krausz P, Guilloton M. Fungicidal properties of meso-arylglycosylporphyrins: influence of sugar substituents on photoinduced damage in the yeast Saccharomyces cerevisiae. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 1999; 48:57-62. [PMID: 10205879 DOI: 10.1016/s1011-1344(99)00009-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A series of neutral meso-arylglycosylporphyrins has been tested in order to evaluate their potency as antifungal agents against the yeast Saccharomyces cerevisiae. Photodynamic activity of these molecules results in intracellular damage as evidenced by the loss of clonogenicity and DNA fragmentation. The ability of these photosensitizers to permeate yeast cells is determined by microspectrofluorimetry and is correlated with their antifungal potency. Amphiphilic porphyrin derivatives are shown to exhibit the more pronounced photoactivity.
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85
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Sol V, Branland P, Granet R, Kaldapa C, Verneuil B, Krausz P. Nitroglycosylated meso-arylporphyrins as photoinhibitors of gram positive bacteria. Bioorg Med Chem Lett 1998; 8:3007-10. [PMID: 9873665 DOI: 10.1016/s0960-894x(98)00536-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Novel porphyrins bearing nitro groups and glucosyl moieties were synthesized. The antibacterial activity of these compounds on Escherichia coli and Staphylococcus aureus is described. Results reveal that their photocytotoxicity is markedly dependent on the nature, the number and the linking position of the glycosyl moieties and nitro groups controlling their amphiphilic characters.
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86
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Davis J, Benhaddou R, Fedoryak O, Granet R, Krausz P, Bliard C, De Monte M, Aubertin AM. Potential antiviral agents. Part II. Synthesis and antiviral evaluation of pyrazinones substituted with acyclic chains. NUCLEOSIDES & NUCLEOTIDES 1998; 17:1489-504. [PMID: 9672706 DOI: 10.1080/07328319808003482] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The synthesis of a series of 4'-substituted hydroxybutyl pyrazine analogues of the anti-herpes compound, acyclovir, is described. The compounds were characterized with 1H and 13C nmr, mass and IR spectroscopy. Antiviral (HSV-1, CMV, Cox B4, HIV-1) properties of these compounds were examined. None of these compounds were active against these viruses.
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87
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Davis J, Benhaddou R, Granet R, Krausz P, Demonte M, Aubertin AM. Synthesis and antiviral evaluation of pyrazinones substituted with acyclic chains. NUCLEOSIDES & NUCLEOTIDES 1998; 17:875-93. [PMID: 9708329 DOI: 10.1080/07328319808003460] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The synthesis of a series of pyrazine analogues of the anti-herpes compound, acyclovir is described. These syntheses were accomplished by various methods: in the presence of a Lewis acid or NaH for hydroxyethoxymethyl and hydroxybutyl groups or by sequential oxidation/reduction of 1-(beta-D-ribofuranosyl)-2-pyrazinones for 2',3'-acyclonucleosides. Antiviral (HSV-1, CMV, Cox B4, HIV-1) properties of these compounds were determined.
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88
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Chauvelon G, Renard CMGC, Saulnier L, Buléon A, Thibault J, Benhaddou R, Granet R, Krausz P. Preliminary study of formation of films from cellulose‐enriched agricultural by‐products. J Appl Polym Sci 1998. [DOI: 10.1002/(sici)1097-4628(19980411)68:2<331::aid-app15>3.0.co;2-#] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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89
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Sol V, Blais J, Bolbach G, Carré V, Granet R, Guilloton M, Spiro M, Krausz P. Toward Glycosylated Peptidic Porphyrins : a New Strategy for PDT? Tetrahedron Lett 1997. [DOI: 10.1016/s0040-4039(97)01489-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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90
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Depelley J, Granet R, Kaouadji M, Krausz P, Piekarski S, Delebassée S, Bosgiraud C. New Non-Aromatic Triazinic Nucleosides: Synthesis and Antiretroviral Evaluation of β-Ribosylamine Nucleoside Analogs. ACTA ACUST UNITED AC 1996. [DOI: 10.1080/07328319608002030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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91
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Gaud O, Granet R, Kaouadji M, Krausz P, Blais JC, Bolbach G. Synthèse et analyse structurale de nouvelles méso-arylporphyrines glycosylées en vue de l'application en photothérapie des cancers. CAN J CHEM 1996. [DOI: 10.1139/v96-053] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The synthesis of 13 novel meso-glycosylarylporphyrins where the carbohydrate moiety is separated from the aryl substituent by a spacer arm is described. These compounds were synthesized by different methods, either by direct glycosylation of the ortho- or para-hydroxyalkoxyarylporphyrin or by condensation of glycosylated aldehyde with pyrrole or meso-(p-tolyl)dipyrromethane. In all cases, a β configuration was observed. Deprotection of the sugar then followed in a basic medium. The compounds were characterized by a variety of means. A detailed 1H and 13C NMR study allowed complete structural determination. The UV–visible and laser desorption mass spectra are presented. Due to their sensitizing abilities, these resultant compounds are of considerable interest for photodynamic therapy. Key words: porphyrins, glycosylations, phototherapy, cancer.
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92
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Depelley J, Granet R, Krausz P, Piekarski S, Bosgiraud C, Beaussoleil S. Synthesis and Antiretroviral Evaluation of Various 5-Alkyl-6-AZA-5,6-Dihydrouridine. ACTA ACUST UNITED AC 1994. [DOI: 10.1080/15257779408011873] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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93
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Bourhim A, Czernecki S, Krausz P. Selective Monoesterification of Unprotected Mono and Disaccharides. J Carbohydr Chem 1993. [DOI: 10.1080/07328309308020100] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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94
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Bourhim A, Gaud O, Granet R, Krausz P, Spiro M. Synthesis of New Glycosylated Porphyrin Derivatives with a Hydrocarbon Spacer Arm. Synlett 1993. [DOI: 10.1055/s-1993-22529] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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95
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Czernecki S, Ezzitouni A, Krausz P. Synthesis of 3′-Deoxy-2′,3′-didehydro-3′-methylthymidine. A Potential Anti-HIV Agent. SYNTHESIS-STUTTGART 1990. [DOI: 10.1055/s-1990-26969] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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96
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Bourhim A, Czernecki S, Krausz P, Viari A, Vigny P. Glycosylated Hematoporphyrins: A New Approach in Cancer Phototherapy? J Carbohydr Chem 1990. [DOI: 10.1080/07328309008543870] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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97
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Radzki S, Krausz P, Gaspard S, Giannotti C. A study of complex formation between differently charged free-base porphyrins and samarium porphyrins. Inorganica Chim Acta 1987. [DOI: 10.1016/s0020-1693(00)81197-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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98
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Mansour E, Maillard P, Krausz P, Gaspard S, Giannotti C. Photochemically induced olefin oxidation by titanyl and vanadyl porphyrins. ACTA ACUST UNITED AC 1987. [DOI: 10.1016/0304-5102(87)80113-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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99
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Guilleux L, Krausz P, Nadjo L, Uzan R. Interaction between porphyrins and hydroxylated compounds. Part 2. Effect of p-nitrophenol during the metallation of tetraphenylporphyrin. ACTA ACUST UNITED AC 1985. [DOI: 10.1039/p29850000951] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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100
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Maillard P, Gaspard S, Krausz P, Giannotti C. Electron transfer reactions between methyl viologen and porphyrins, bis-porphyrins, phthalocyanines, and their metal derivatives. J Organomet Chem 1981. [DOI: 10.1016/s0022-328x(00)81915-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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